気相光電解反応の論文がEnergy Advances誌の2024年3号のfront coverに採択されました。
Our paper on gas-phase photoelectrochemical reactions has been employed as the front cover of Energy Advances, Issue 3, 2024.
F. Amano*, K. Tsushiro, C. Akamoto, "Gas-fed Photoelectrochemical Reactions Sustained by Phosphotungstic Acid as an Inorganic Surface Electrolyte", Energy Advances, 3, pp 558–563, 2024, https://doi.org/10.1039/D3YA00568B
Gas-fed photoelectrochemical (PEC) system with a porous photoelectrode and proton-exchange membrane (PEM) has the potential to produce hydrogen from water vapour and activate methane at room temperature. To effectively drive gas-phase PEM-PEC reactions, porous photoelectrodes should be coated with a solid electrolyte of perfluorinated sulfonic acid (PFSA) ionomers. However, fluorocarbon-based ionomers were not chemically stable in vapour-fed PEC systems. Herein, we report that polyoxometalate, an inorganic proton-conducting material, may be employed as the surface electrolyte of a WO_{3} porous photoelectrode for vapour-fed water splitting and methane activation under visible light irradiation. We demonstrate that the porous WO_{3} photoanode modified with phosphotungstic acid (H_{3}PW_{12}O_{40}) induces PEC reactions, including the oxygen evolution reaction and methane conversion, under gas feeding. Additionally, we demonstrated improved durability by using the inorganic surface electrolyte.